A volume of papers from a conference held by the McDonald Institute in Cambridge, 1993. The aim of the conference was to address key issues in the development of intelligence and cognitive capacities though the course of human evolution. It did this by invoking theoretical perspectives from a broad range of relevant disciplines - psychology, ethology and primate behaviour, neurology, child development, artificial intelligence and, of course, archaeology. The volume contains the papers presented at the conference, revised and updated in the light of post-conference discussions. It provides the most comprehensive review available of current approaches to 'modelling' the evolution of intelligence and congnition in early human popoulations. Seventeen papers by Colin Renfrew, Richard W. Byrne, Robert A. Foley, Steven Mithen, J. A. J. Gowlett, Frederic Joulian, James Russell, Christopher Longuet-Higgins, David Erdal, Andrew Whiten, P. C. Lee, Peter G. Grossenbacher, K. A. Robson Brown, Leslie C. Aiello, Elizabeth Whitcombe, Angela C. Roberts, Peter Collins and Trevor W. Robbins.